SU620207A3 - Способ получени оптически активных соединений р да простагландинов - Google Patents
Способ получени оптически активных соединений р да простагландиновInfo
- Publication number
- SU620207A3 SU620207A3 SU742025131A SU2025131A SU620207A3 SU 620207 A3 SU620207 A3 SU 620207A3 SU 742025131 A SU742025131 A SU 742025131A SU 2025131 A SU2025131 A SU 2025131A SU 620207 A3 SU620207 A3 SU 620207A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- mixture
- formula
- optically active
- brine
- stirred
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 5
- 239000000203 mixture Substances 0.000 description 25
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 18
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 16
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 239000012267 brine Substances 0.000 description 13
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 150000001875 compounds Chemical class 0.000 description 10
- 239000000741 silica gel Substances 0.000 description 10
- 229910002027 silica gel Inorganic materials 0.000 description 10
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 239000012074 organic phase Substances 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 6
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 150000004702 methyl esters Chemical class 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 125000006239 protecting group Chemical group 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- -1 t-butoxy-lithium hydride Chemical compound 0.000 description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000004587 chromatography analysis Methods 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 238000001819 mass spectrum Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 150000002596 lactones Chemical class 0.000 description 2
- 150000002905 orthoesters Chemical class 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 239000012279 sodium borohydride Substances 0.000 description 2
- 229910000033 sodium borohydride Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 125000004187 tetrahydropyran-2-yl group Chemical group [H]C1([H])OC([H])(*)C([H])([H])C([H])([H])C1([H])[H] 0.000 description 2
- HUHXLHLWASNVDB-UHFFFAOYSA-N 2-(oxan-2-yloxy)oxane Chemical compound O1CCCCC1OC1OCCCC1 HUHXLHLWASNVDB-UHFFFAOYSA-N 0.000 description 1
- JEXQWCBPEWHFKC-UHFFFAOYSA-N 2-cyclopentylethanol Chemical compound OCCC1CCCC1 JEXQWCBPEWHFKC-UHFFFAOYSA-N 0.000 description 1
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Natural products CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- 101100420681 Caenorhabditis elegans tir-1 gene Proteins 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241001331845 Equus asinus x caballus Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 102100026933 Myelin-associated neurite-outgrowth inhibitor Human genes 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- AYVGBNGTBQLJBG-UHFFFAOYSA-N [3-(hydroxymethyl)cyclopentyl]methanol Chemical compound OCC1CCC(CO)C1 AYVGBNGTBQLJBG-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- SIPUZPBQZHNSDW-UHFFFAOYSA-N bis(2-methylpropyl)aluminum Chemical compound CC(C)C[Al]CC(C)C SIPUZPBQZHNSDW-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- FDSGHYHRLSWSLQ-UHFFFAOYSA-N dichloromethane;propan-2-one Chemical compound ClCCl.CC(C)=O FDSGHYHRLSWSLQ-UHFFFAOYSA-N 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 239000012280 lithium aluminium hydride Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 150000002900 organolithium compounds Chemical class 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- NHKJPPKXDNZFBJ-UHFFFAOYSA-N phenyllithium Chemical compound [Li]C1=CC=CC=C1 NHKJPPKXDNZFBJ-UHFFFAOYSA-N 0.000 description 1
- 229960005235 piperonyl butoxide Drugs 0.000 description 1
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 235000012437 puffed product Nutrition 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000002221 trityl group Chemical group [H]C1=C([H])C([H])=C([H])C([H])=C1C([*])(C1=C(C(=C(C(=C1[H])[H])[H])[H])[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/93—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems condensed with a ring other than six-membered
- C07D307/935—Not further condensed cyclopenta [b] furans or hydrogenated cyclopenta [b] furans
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C405/00—Compounds containing a five-membered ring having two side-chains in ortho position to each other, and having oxygen atoms directly attached to the ring in ortho position to one of the side-chains, one side-chain containing, not directly attached to the ring, a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, and the other side-chain having oxygen atoms attached in gamma-position to the ring, e.g. prostaglandins ; Analogues or derivatives thereof
- C07C405/0008—Analogues having the carboxyl group in the side-chains replaced by other functional groups
- C07C405/0016—Analogues having the carboxyl group in the side-chains replaced by other functional groups containing only hydroxy, etherified or esterified hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C405/00—Compounds containing a five-membered ring having two side-chains in ortho position to each other, and having oxygen atoms directly attached to the ring in ortho position to one of the side-chains, one side-chain containing, not directly attached to the ring, a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, and the other side-chain having oxygen atoms attached in gamma-position to the ring, e.g. prostaglandins ; Analogues or derivatives thereof
- C07C405/0008—Analogues having the carboxyl group in the side-chains replaced by other functional groups
- C07C405/0025—Analogues having the carboxyl group in the side-chains replaced by other functional groups containing keto groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D309/08—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D309/10—Oxygen atoms
- C07D309/12—Oxygen atoms only hydrogen atoms and one oxygen atom directly attached to ring carbon atoms, e.g. tetrahydropyranyl ethers
Landscapes
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pharmacology & Pharmacy (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Furan Compounds (AREA)
- Pyrane Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/361,991 US3931279A (en) | 1973-05-21 | 1973-05-21 | 5-Oxa prostaglandin F2.sub.α analogs |
Publications (1)
Publication Number | Publication Date |
---|---|
SU620207A3 true SU620207A3 (ru) | 1978-08-15 |
Family
ID=23424252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU742025131A SU620207A3 (ru) | 1973-05-21 | 1974-05-20 | Способ получени оптически активных соединений р да простагландинов |
Country Status (13)
Country | Link |
---|---|
US (1) | US3931279A (xx) |
JP (1) | JPS5752326B2 (xx) |
AU (1) | AU476680B2 (xx) |
BE (1) | BE815355A (xx) |
CH (1) | CH610300A5 (xx) |
DE (1) | DE2423156A1 (xx) |
DK (1) | DK145083C (xx) |
GB (1) | GB1448414A (xx) |
NL (1) | NL7406556A (xx) |
PL (1) | PL97783B1 (xx) |
SE (1) | SE425485B (xx) |
SU (1) | SU620207A3 (xx) |
ZA (1) | ZA742574B (xx) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4024179A (en) * | 1972-11-08 | 1977-05-17 | Pfizer Inc. | Substituted ω-pentanorprostaglandins |
US4387241A (en) * | 1974-11-01 | 1983-06-07 | American Cyanamid Company | Novel 16-aryloxy-17,18,19,20-tetranorprostanoic acids and derivatives |
DE2524955C3 (de) * | 1975-06-05 | 1981-12-03 | Hoechst Ag, 6000 Frankfurt | Neue Thienyl-Prostaglandine und Verfahren zu ihrer Herstellung |
US4107427A (en) * | 1976-08-20 | 1978-08-15 | The Upjohn Company | Process and intermediates for preparing Thromboxane B1 |
US4052552A (en) * | 1976-08-20 | 1977-10-04 | The Upjohn Company | Thromboxane b analogs |
US4054737A (en) * | 1976-08-20 | 1977-10-18 | The Upjohn Company | Thromboxane B analogs |
US4228296A (en) * | 1979-01-24 | 1980-10-14 | American Cyanamid Company | Novel 16-aryloxy-17,18,19,20-tetranorprostanoic acids and derivatives |
WO1982002833A1 (en) * | 1981-02-17 | 1982-09-02 | Gail Sansone Bazzano | The use of retinoids and their derivatives to increase the rate of growth of human scalp hair and to increase the rate of growth of fur in certain fur-bearing animals |
EP0093770B1 (en) * | 1981-11-09 | 1991-06-19 | BAZZANO, Gail S | The use of retinoids and minoxidil (2,4-diamino-6-piperidino-pyrimidine-3-oxide) to increase the rate of growth of human scalp hair and to treat certain types of alopecias |
IL143477A (en) * | 2001-05-31 | 2009-07-20 | Finetech Pharmaceutical Ltd | Process for the preparation of 17-phenyl-18,19,20-trinor-pgf2?? and its derivatives |
GB0112699D0 (en) * | 2001-05-24 | 2001-07-18 | Resolution Chemicals Ltd | Process for the preparation of prostglandins and analogues thereof |
US7109371B2 (en) * | 2004-01-05 | 2006-09-19 | Johnson Matthey Public Limited Company | Prostaglandin synthesis |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE754114A (fr) * | 1969-07-29 | 1971-01-29 | Upjohn Co | Nouveaux composes de la classe des prostaglandines et leur procede de preparation |
-
1973
- 1973-05-21 US US05/361,991 patent/US3931279A/en not_active Expired - Lifetime
-
1974
- 1974-04-23 ZA ZA00742574A patent/ZA742574B/xx unknown
- 1974-04-30 AU AU68394/74A patent/AU476680B2/en not_active Expired
- 1974-05-01 GB GB1915174A patent/GB1448414A/en not_active Expired
- 1974-05-13 CH CH651874A patent/CH610300A5/xx not_active IP Right Cessation
- 1974-05-13 DE DE2423156A patent/DE2423156A1/de not_active Withdrawn
- 1974-05-16 SE SE7406533A patent/SE425485B/xx unknown
- 1974-05-16 NL NL7406556A patent/NL7406556A/xx not_active Application Discontinuation
- 1974-05-20 DK DK275074A patent/DK145083C/da active
- 1974-05-20 SU SU742025131A patent/SU620207A3/ru active
- 1974-05-20 JP JP49055663A patent/JPS5752326B2/ja not_active Expired
- 1974-05-21 BE BE144587A patent/BE815355A/xx not_active IP Right Cessation
- 1974-05-21 PL PL1974171289A patent/PL97783B1/pl unknown
Also Published As
Publication number | Publication date |
---|---|
AU476680B2 (en) | 1976-09-30 |
SE425485B (sv) | 1982-10-04 |
DK145083C (da) | 1983-01-24 |
JPS5018441A (xx) | 1975-02-26 |
US3931279A (en) | 1976-01-06 |
BE815355A (fr) | 1974-11-21 |
PL97783B1 (pl) | 1978-03-30 |
GB1448414A (en) | 1976-09-08 |
DK145083B (da) | 1982-08-23 |
AU6839474A (en) | 1975-10-30 |
ZA742574B (en) | 1975-04-30 |
DE2423156A1 (de) | 1974-12-12 |
CH610300A5 (xx) | 1979-04-12 |
JPS5752326B2 (xx) | 1982-11-06 |
NL7406556A (xx) | 1974-11-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SU620207A3 (ru) | Способ получени оптически активных соединений р да простагландинов | |
SU508193A3 (ru) | Способ получени -(метоксиметил-фурилметил)-6,7-бензоморфанов или-морфинанов | |
GB1422318A (en) | Cyclopentanone triesters | |
SU473356A3 (ru) | Способ получени производных циклопентана | |
SU518135A3 (ru) | Способ получени производных хромана | |
Nicolaides et al. | Azaserine, synthetic studies. II | |
GB1425532A (en) | Cyclic mercaptals and a process for the manufacture thereof | |
US3862972A (en) | Process for preparing Unsaturated Carboxylic Acids | |
Camps et al. | New clerodane diterpenoids from Ajuga iva (Labiatae) | |
SU818480A3 (ru) | Способ получени производных пир-РОлидОНА или ЕгО C эпиМЕРОВ | |
Cope et al. | The Detosylation of 1, 4: 3, 6-Dianhydrohexitol Ditosylates and Syntheses of 1, 4: 2, 5: 3, 6-Trianhydro-D-Mannitol | |
Ireland et al. | Allylic Rearrangements. XLV. 1 The Reaction of Thionyl Chloride with 4β-Hydroxycholesteryl Benzoate | |
Kumagai et al. | An enzyme inhibitor, panosialin, produced by Streptomyces. II | |
GB2083039A (en) | Spectinomycin analogues and their preparation | |
US4039563A (en) | Process for preparing cyclopent-2-en-1-one derivatives | |
SU826957A3 (ru) | Способ получения 11[ь-окси-18-метилстероидов' эстранового ряда . | |
US2301206A (en) | Manufacture of terphenyl derivatives | |
US3886185A (en) | Novel prostaglandin intermediates and process for the production thereof | |
US2750373A (en) | Aralkanoyl and aralkenoyl derivatives of podocarpic acid esters | |
TANAKA et al. | Synthetic Studies on a Picrotoxane Sesquiterpene, Coriamyrtin. I. The Grignard Reaction of 5-(2-Methyl-1, 3-dioxo-2-cyclopentyl) methyl-2, 5H-furanone with Isopropenylmagnesium Bromide and Stereochemistries of the Products | |
US3870711A (en) | Preparation of prostanoic acid derivatives | |
US2478788A (en) | Process for preparing amino acids | |
US2803632A (en) | Synthesis of steroids | |
US2702805A (en) | Production of steroids | |
US3868402A (en) | Novel cyclopentanone-2-carboxylates |